Audio case



FIG. 1 is a front view of an audio case showing our design;

FIG. 2 is a left side view thereof shown in a partially open configuration;

FIG. 3 is a rear view thereof; and,

FIG. 4 is a front view of the audio case of FIG. 1 in an open configuration. 

The ornamental design for an audio case, as shown and described. 